Question

1. which selection process primarily occurs in the wild, driven by environmental factors? a. human - induced selection b. controlled selection c. natural selection d. artificial selection 8. what role do environmental pressures play in natural selection? a. they drive the survival and reproduction of organisms, influencing trait frequency b. they ensure that all traits are equally represented in a population c. they create random mutations in organisms d. they have no impact on the survival of organisms 9. what is a limitation of phylogenetic analyses? a. missing genetic sequences leading to inaccuracies b. no impact from missing data c. complete data availability d. clear ancestral reconstructions

Explanation:

• Question 7: Natural selection occurs in the wild and is driven by environmental factors. Human - induced and artificial selection involve human intervention, and controlled selection is also not primarily a wild - based, environment - driven process.
• Question 8: Environmental pressures in natural selection drive the survival and reproduction of organisms, influencing which traits are more likely to be passed on, thus affecting trait frequency. They do not ensure equal representation of traits, do not create random mutations (mutations are random on their own), and have a significant impact on organism survival.
• Question 9: A limitation of phylogenetic analyses is missing genetic sequences which can lead to inaccuracies in determining evolutionary relationships. Complete data availability is not a limitation, and having no impact from missing data or clear ancestral reconstructions are not limitations but rather ideal or incorrect scenarios.

Answer:

1. c. Natural selection
2. a. They drive the survival and reproduction of organisms, influencing trait frequency
3. a. Missing genetic sequences leading to inaccuracies